Since the early 1960s exports of manufactures from developing countries have grown rapidly. Widening gaps between the wages of rich and poor countries, coupled with dramatic declines in transportation costs and increased technological capabilities, led to this growth. Production of labor-intensive goods in newly industrializing economies became a significant factor in work markets. Industrial country firms responded to this situation by integrating production processes were transferred abroad to countries with an abundance of cheap labor, while technologically advanced components were...